High-Temperature Superconductors and Novel Inorganic Materials

The discovery of high temperature superconductivity in 1986 stimulated an enormous research activity around the world in physics, chemistry as well as in materials science. The synthesis, the analysis and the understanding of superconducting Cu-based mixed oxides are difficult scientific challenges. Moreover, the fabrication of superconducting ceramics and of thin films and devices poses new technological problems. Actually, the complexity of these materials is one of the main reasons of their relatively slow appearence on the world market. A successful research in the field of High-Tc supercon ductivity strongly demands a deep cooperation between scientists from various fields. This is exactly why High-Tc superconductivity became a crystallization center or a nucleus for scientific cooperation of researchers from various fields and from different countries. The numerous international conferences on High-Tc materials often unify physicist, chemists and materials scientists, theoreticians as well as experimentalists, aiming to dis cuss and to find the optimum solution for important problems in this field. This idea was the reason why the Department of Inorganic Chemistry of the Moscow State University organized in 1989 the I-st International Workshop "Chemistry and Technology of High Tc materials MSU-HTSC-I". These workshops, organised every other year, allowed to establish and develop scientific cooperation between Western and Russian scientists. In 1998 the 5-th International Workshop on "High Temperature Superconductors and Novel Inorganic Materials Engineering - MSU-HTSC-V" was organized.

Zusammenfassung
Proceedings of the NATO Advanced Research Workshop on High-Temperature Superconductors and Novel Inorganic Materials Engineering MSU-HTSC V, Moscow, Russia, March 24-29, 1998

Inhalt
Recent Advances in Fabrication of High-Tc Superconductors for Electric Power Applications.- The Local Structure of YBCO Based Materials by TEM.- High Pressure Crystal Growth and Properties of Hg-Superconductors and Quasi-One-Dimensional Cuprates.- Polymerizable Complex Synthesis of Multi-Component Oxides Including High-Temperature Superconducting Oxides.- Spray Pyrolysis of High-Temperature (Super)Conductors.- Preparation and Characterisation of HTSC Powders Shaping of Bulk Materials and Their Magnetic Properties.- In Situ Monitoring of CVD for HTS Growth.- Electrodeposition of HTSC Films.- Cryochemical Technology of Superconductors and Related Materials.- Phase Equilibria of the (Bi,Pb)-Sr-Ca-Cu-O System Pertaining to the 2212 and 2223 Phases.- Formation of Stable Phase Inclusions in Bi-2212 and (Bi,Pb)-2223 Materials.- Atomic Layer MOCVD of Oxide Superconductors and Dielectrics.- Single Source MOCVD of HTSC Films Onto Movable Substrates.- The Liquid Source Injection Technique: Principle and Application to the Deposition of Oxide Layers and Multlayers.- Oxide-Fluorides: New Parent Structures for Superconducting Materials.- High-Pressure Synchrotron Diffraction Study of the Superconducting Spin-Ladder Compound (Sr,M)14Cu24O41WITH M=Ca, Ba, Nd.- Structural Studies of Cuprates and Bismuthates by Electron Microscopy.- Novel Structural Phenomena at the Maximum Tc in 123 and HgBa2CuO4+?Superconductors: Evidence for a Structural Response That Competes with Superconductivity.- Ba-Cu-O-CL Compounds with Non-Equivalent Cu Sites: Phase Equilibria and Crystal Structure.- La Doping Effects on Structure and Conductivity of (Ba,Sr,Ca)PbO3.- Effects of Sr Substitution on the Tc and Crystal Structure of Tl2(Ba1-xSrx)2Ca2Cu3Oy.- Anion Ordering in Fluorinated La2CuO4.- Interface DefectsInduced by Epitaxial Growth Mechanism in YBa2Cu3O7Thin Films on SrTiO3Substrate: Application to Thin Films Bicrystals and Multilayers.- Phase Diagram and Structure-Related Studies of the Nd-RICH Nd1+xBa2-xCu3OzSolid Solution.- Phase Structure in the Asynnni Model for the Self-Diffusion of Oxygen In 123YBCO.- Anion Doping and Superconducting Properties of Hg-Based Superconducting Mixed Oxides.- Phase Equilibria and Single Crystal Growth of Ln1-xCaxSr2Cu2GaO7(Ln =Y, Ho).- Superconductivity in KxBa1-xBiO3Single Crystals.- Study of Holes Distribution in the Ln1+xBa2-xCu3OzSolid Solutions (Ln = La and Nd) by Raman Spectroscopy.- Nuclear Resonance and Susceptibility Investigations of Hg-Based High-Tc Superconductors.- Vortex Lock-In Phenomena in YBa2Cu3OySingle Crystals.- Magneto-Optical Characterisation of Bi2Sr2CaCu2OxSingle Crystals. Structure and Electronic Properties.- Effect of Pb and Sr Substitutions on Irreversiblity and Fishtail Lines of Hg-1223 Phase: Powder, Ceramic and Single Crystal Studies.- Cation Substitution, Second Phase Precipitation, Superconductivity, and Flux Pinning in LRE1+xBa2-xCu3O7.- Thallium-Based HTS Thin Films for Microwave Applications.- Callum Superconductivity Suppression in (Nd1.05-xPrx)Ba1.95Cu3O7Studied by X-Ray Absorption Spectroscopy.- Intergrain Properties of Pressure-Oxygenated REBa2Cu3O3-?.- Tracer Diffusion of Oxygen in 123ybco from Monte-Carlo Simulations of the Asynnni Model.- Electron Doped Manganites Ca1-xAxMnO3(A= Ln, Th).- (La1-xPrx)0.7Ca0.3MnO3Colossal Magnetoresistive Materials: Structure and Electronic Properties.- Hrem Study of Domains in Thin Films of La0.73Ca0.27MnO3AND (La1-xPrx)0.7Ca0.3MnO3.- Effect of Temperature on Ca2Fe2O5and Crystal Structures in the (Ca,Sr)Fe1-yTiyO3-?System Studied by Powder NeutronDiffraction.- Structure and Properties of Some Thiospinels.- Phase Transitions in Ternary Oxides.- Mesoscopic Scale Structures of a Ferroelastic Domain Wall.- Structural Effects of the Diffusion Enhancement in Growing Oxide Films.- Prtparation of Ferroelectric Oxide Flms by Sol-Gel Method.- Study of The Reactivity of Nanocrystallites of SnO2 with H2S by Coupled Electrical and Raman Measurements.- A Discussion of Diffusion and Solid State Reactions in Alloys of II-VI III-VI AND IV-VI Compounds on the Basis of Phase Diagrams.- Optical Properties of Gallium - Doped PbTe.- Precursors for Barium Metal-Organic Chemical Vapor Deposition. Advantages and Disadvantages in Improvement of Barium Hexafluoroacetylacetonate.